<span>Energy is usually liberated from the ATP molecule to do work in the cell by a reaction that removes one of the phosphate-oxygen groups, leaving adenosine diphosphate (ADP). When the ATP converts to ADP, the ATP is said to be spent.</span>
Energy<span> is usually liberated from the </span>ATP<span> molecule to </span>do<span> work in the cell by a reaction that removes one of the phosphate-oxygen groups, leaving adenosine diphosphate (</span>ADP<span>). When the </span>ATP<span> converts to </span>ADP<span>, the </span>ATP is said to be spent. So anytime a chemical bond is broken energy is produced. ATP having a volatile Triphosphate bond allows for the third phosphate molecule to be easily removed and produce energy.
